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How Can I Manually Trigger an Onchange Event in Modern Browsers?

Linda Hamilton
Linda HamiltonOriginal
2024-12-14 03:06:09743browse

How Can I Manually Trigger an Onchange Event in Modern Browsers?

How to Manually Trigger an Onchange Event in Modern Browsers

In the context of a date-time textfield, you may need to manually trigger the onchange event to reset related fields on the page. The conventional onchange event only triggers when the element gains focus and its value is modified upon losing focus.

Thankfully, modern browsers provide a cleaner solution:

  1. Create a New Event: Use new Event('change') to create a new change event.
  2. Dispatch the Event: Dispatch the created event using element.dispatchEvent(event), where element is the textfield input.

This approach simulates a regular onchange event and triggers any registered event listeners. It avoids the need for complex focus juggling or reliance on specific triggers like loss of focus.

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